/** 滚动条 initScrollbar **/
.wi-scrollbar{
    display: none;
    position: absolute;
    height: 100%;
    right: 0;
    width: 3px;
    background: #005490;
}
.wi-scrollbar.active{ display: block; }
.wi-scrollbar-slider{
    position: absolute;
    right: 0;
    width: 100%;
    background: #58b5e1;
}